1.

Sulphur heptoxide is an anhydride ofA. `H_(2)S_(2)O_(8)`B. `H_(2)S_(2)O_(7)`C. `H_(2)SO_(4)`D. `H_(2)SO_(5)`.

Answer» Correct Answer - A
`S_(2)O_(7) + H_(2)O rarr underset("Persulphuric acid")(H_(2)S_(2)O_(8))`


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